This past month a bud of mine gave me some 130's and 150's for my newly bought 270. I've never hunted with a 270 before and need some help. I'm going on an elk hunt and I'm not quite sure what bullets to use. He said he's only used the 130's for mule deer. Would those work for elk or should I move up to 150's. BTW this is my first elk hunt with a 270 so I'm sorry if I sound stupid.